Irregular Verbs
i-a-u
Some irregular verbs are irregular because the middle vowel changes in the past and past participle
forms. Many vowel-changing verbs follow an i-a-u pattern. Below are a few examples. Following the
pattern, fill in the rest of the chart. (For this exercise, we have eliminated the column for “present
participle.”)
Base
begin
drink
ring
shrink
sing
spring
stink
swim
Past
began
drank
rang
Past Participle
[have] begun
[have] drunk
[have] rung
Irregular Verbs
i-a-u
Some irregular verbs are irregular because the middle vowel changes in the past and past participle
forms. Many vowel-changing verbs follow an i-a-u pattern. Below are a few examples. Following the
pattern, fill in the rest of the chart. (For this exercise, we have eliminated the column for “present
participle.”)
Base
begin
drink
ring
shrink
sing
spring
stink
swim
Past
began
drank
rang
Past Participle
[have] begun
[have] drunk
[have] rung